Vehicle having a cabin, said cabin having a profile, and said profile

Abstract

The invention relates to a vehicle (2) having a cabin (1), to said cabin (1) having a profile (4), and to said profile (4). In order to enable high dimensional accuracy of the profile (4) with simplicity of production, it is proposed that the outer profile (7) has, in the curved and / or bent profile section (6), at least one cohesive connection (10a), in particular produced with at least one additional material, and optionally a form-fitting connection (10b) between the inner and outer profiles (7, 8), which connection (10a, 10b) is introduced at least in the region of a material recess (9a1 to 9a8) that penetrates the outer profile (7).

Description

[0001] Vehicle with a cabin, this cabin with a profile and this profile

[0002] Technical field

[0003] The invention relates to a vehicle, a cabin with a profile and this profile, in particular a hollow profile, which has at least one profile section curved and / or bent in its longitudinal direction, with an outer profile extending over the curved and / or bent profile section of the profile and with an inner profile provided at least partially in the curved and / or bent profile section and, in particular, completely within the outer profile.

[0004] State of the art

[0005] Mechanical reinforcement of profiles, including longitudinally curved and / or bent sections, is known from the prior art (EP1516802B1). This reinforcement can be achieved, for example, by inserting an inner metal profile into an outer metal profile. Depending on the required radius of curvature in the curved and / or bent profile section and the required mechanical properties, undesirable bulges and / or creases can occur during manufacturing, leading to uncontrolled properties. Therefore, the production of such profiles is particularly complex and costly.

[0006] Description of the invention: The invention therefore aims to create a profile that is not only particularly durable mechanically, but can also be manufactured reproducibly, for example also cost-effectively.

[0007] The invention solves the stated problem by the features of claim 1.

[0008] If the outer profile has at least a material-bonded connection between the inner and outer profiles in the curved and / or bent profile section, the profile can withstand higher mechanical loads with stability - this is further improved if the outer profile also has a positive-locking connection in this profile section (and therefore optionally).

[0009] If this material-bonded and, where applicable, form-fit connection is introduced at least partially in the area of ​​a material recess penetrating the outer profile, a mechanical weakening of the profile caused by such a material recess can be compensated for, among other things. It is conceivable that this material recess could also (and therefore optionally) penetrate the inner profile.

[0010] Advantageously, this material recess, which may be concealed beneath the bonded joint, can significantly simplify the production of the curved and / or bent profile section. This recess facilitates the flow of the materials during bending, thus preventing undesirable bulges and creases in this profile section. This does not compromise the profile's structural integrity. Furthermore, the profile is simpler and therefore more cost-effective to manufacture, even while maintaining high dimensional accuracy and mechanical strength.

[0011] The profile according to the invention can not only be produced reproducibly, but also possesses outstanding mechanical strength and stability.

[0012] It is conceivable that the inner and / or outer profile is, for example, a hollow profile, particularly a closed one. Preferably, this material-bonded connection is made with at least one filler material to achieve a material-compensating effect. Preferably, the material-bonded connection is a weld to enable improved structural integrity and strength in the curved and / or bent profile section. For example, this could be a fusion weld. A slot weld is also conceivable. It could also be a full slot weld to mechanically and securely connect the inner and outer profiles.

[0013] Alternatively, a soldered joint can also be used to create a material-bonded connection. An adhesive bond can also create such a durable material-bonded connection. The adhesive could be, for example, a one-component adhesive based on methyl acrylate or a two-component adhesive based on epoxy resin. Additionally or alternatively, the use of an anaerobic or heat-curing adhesive is also conceivable.

[0014] Preferably, the positive-locking connection includes a connecting element to firmly join the inner and outer profiles. This connecting element can be a pin or a rivet.

[0015] It is also conceivable that this positive-locking connection has a material tongue of the outer profile that engages with the inner profile. This material tongue could, for example, serve to position the inner profile before bending and / or welding.

[0016] For example, the material recess has a slope inclined to the longitudinal direction of the profile, at least in some sections. Such a slope significantly reduces the bending stresses that occur during bending, which can lead to more precise and uniform forming of the inner and outer profiles. This is especially true if the material recess has a slope inclined perpendicular to the longitudinal direction of the profile, at least in some sections. This enables, for example, the production of precise profiles with complex geometries. It is also conceivable that the material recess could run along the inner side of the curved and / or bent section of the profile, particularly along the entire length. This could, for example, reduce bulges and / or creases in the tightest curve of the profile and prevent any risk to the profile's stability.

[0017] This is especially true if the material recess on the relevant side surface adjoins the inner surface of the curved and / or bent profile section and extends towards the outer surface of the curved and / or bent profile section.

[0018] Preferably, the material recess ends with a first gap in front of the outer surface. Alternatively, it is conceivable that the material recess ends in the transition area to this outer surface of the curved and / or bent profile section, in order to further facilitate the flow of the material even at the outer radius of curvature.

[0019] Manufacturing the profile can be simplified if the material recess is designed as a slot. Furthermore, this can also facilitate the material-bonded joining process, thus further improving the reproducibility of the profile's production.

[0020] For example, this material recess can also be U-shaped and run along the profile.

[0021] Tighter radii in the curved area can be reliably achieved if several material recesses are provided next to each other, especially parallel, at a second distance.

[0022] It is also conceivable that the material recess has a substantially uniform opening width along its length. This facilitates the creation of a material-bonded connection. Furthermore, this can also ensure a uniform stress distribution across the profile, resulting in improved mechanical properties. This is advantageously the case along the entire length of the material recess.

[0023] The dimensional accuracy of the profile can be increased if the material recess is interrupted along its course by at least one spacer formed by the respective outer or inner profile, particularly one that cantilevers freely. This allows a desired curved profile to be preset in a reproducible manner, namely by limiting it through the contact of the spacer. This can further facilitate not only the bending of the profile but also the material-bonded joining process.

[0024] This is especially true if the connection is also made in the area of ​​a material recess penetrating the inner profile, which directly adjoins the material recess of the outer profile. Furthermore, this can ensure a stable weld between the two profiles. This can be achieved, for example, with a double-slot weld, which is also fully welded, as shown in the exemplary embodiment.

[0025] The connection between the inner and outer profiles can be further improved if the material bond completely fills the material recess in its entirety and / or depth. This is further improved by ensuring that the material bond completely fills this material recess in its entirety and / or depth.

[0026] Depending on the desired mechanical properties, it is conceivable that the inner profile runs continuously through the curved and / or bent profile section. Optionally, at least one, and in particular both, adjoining straight profile sections can project forward. This serves, for example, to further reinforce the transition area between the profile sections. The profile according to the invention is preferably used in a cabin. Here, the profile can be used as part of a cabin frame – for example, as a pillar. This pillar can also be a B-pillar.

[0027] For example, this profile or cabin could be used on a vehicle. A tractor, for instance, would be a conceivable vehicle.

[0028] The invention also aims to facilitate the production of a profile that is resistant to mechanical forces.

[0029] The invention solves the stated problem through the features of claim 15.

[0030] By providing or manufacturing an outer profile with at least one material recess penetrating it and an inner profile with optionally at least one material recess penetrating it, inserting the inner profile into the outer profile, in particular by sliding it in, and then jointly forming the outer and inner profiles, in particular by bending them, such that a profile section is formed on the profile that is curved and / or kinked in its longitudinal direction, with the material recess in this profile section, the latter manufacturing step is considerably simplified. It is conceivable that the inner profile is inserted into the outer profile in the longitudinal direction of the profile.

[0031] However, a reduction in the stability of the profile is not to be expected, since in a further step at least a material-bonded connection between the inner and outer profile is created at the material recess of the outer profile.

[0032] This material-bonded connection can be produced, for example, with at least one additive material.

[0033] This creates a fast, efficient process that also offers high reproducibility. The process can be performed even more reproducibly if the inner profile is secured in position within the outer profile before the joint forming process is carried out. For this purpose, a positive-locking connection between the inner and outer profiles can be created prior to the joint forming.

[0034] Brief description of the drawings

[0035] The figures illustrate the invention in more detail using an exemplary embodiment.

[0036] Fig. 1 shows a vehicle cabin with a profile according to the invention,

[0037] Fig. 2 shows a detailed view of a curved profile section of the profile shown in Fig. 1.

[0038] Fig. 3 shows a detailed view of the material recesses including the weld seam of the part according to Fig.

[0039] 2 curved profile section shown and

[0040] Fig. 4 is an enlarged top view of the material recess of Fig. 2.

[0041] Method for implementing the invention

[0042] Figure 1 shows the cabin 1 of a vehicle 2 designed as a tractor, although the vehicle 2 is only partially depicted. The cabin 1 has a frame 3 with interconnected, for example welded, profiles 4, 5. The profiles 4 are column-like frame members of the frame 3, namely a B-pillar. The other profiles 5 are frame members of the frame 3 that connect the column-like profiles 4. As can also be seen in Figure 1, the column-like profiles 4 each have several curved profile sections 6 along their longitudinal direction L. These curved profile sections 6 are produced, for example, by a bending process.

[0043] In the exemplary embodiment, the bending line, extending along the longitudinal direction L of profile 4, follows a circular arc. The profile section 6 is therefore continuously curved due to a constant curvature. However, a discontinuously curved profile section 6 with a curvature that changes in the longitudinal direction L is also conceivable (not shown). Naturally, a profile section 6 that is both continuous and discontinuous is also conceivable (not shown). Likewise, a profile section that is kinked in the longitudinal direction L is conceivable – that is, the profile section that forms the kink – which is also not shown.

[0044] The curved profile sections 6 are reinforced in the material to meet the required mechanical loads to ensure the protective function of cabin 1.

[0045] For this purpose, the column-like profiles 4 each have an inner profile 8 in the curved profile sections 6 of the outer profile 7, as can be seen in detail for all profile sections 6 in Fig. 2. The outer profile 7 thus forms at least the outer surface of the profile 4 in sections. In addition, the inner profile 8 is provided completely within the outer profile 7 in the entire curved profile section 6, as can be seen in the figures. For this purpose, the inner profile 8 is inserted into the outer profile 7 in the longitudinal direction L of the profile 4.

[0046] The outer profile 7 extends over the entire profile length of the profile 4 in question and thus also over the curved and / or kinked profile section 6 of the profile 4. The inner profile 8 also projects into both adjoining profile sections 6a and 6b of the profile 4, which run straight in the longitudinal direction L of the profile 4.

[0047] In this embodiment, profile 4, and therefore also outer profile 8, is a closed hollow profile. Likewise, inner profile 7 is a closed hollow profile in this embodiment. In general, other profile shapes are also conceivable, for example, an open hollow profile. Open hollow profiles can, for example, have a U-shaped, hat-shaped, C-shaped, or similar cross-section.

[0048] To ensure precise manufacturing of the curved profile sections 6 by bending, the profiles 4 in the curved profile sections 6 are specially designed. As shown in Fig. 2, only the outer profile 7 in the curved profile section 6 has several material recesses 9a1 to 9a8 penetrating this outer profile 7. This allows this area of ​​the profile 4 to be bent with precise shape, avoiding bulges and / or creases.

[0049] In addition, at each of these material recesses 9a1 to 9a8 there is a material-bonded connection 10a, in the form of a weld seam 11, between inner profile 8 and outer profile 7, as can be seen in Fig. 2 and in detail in Fig. 3.

[0050] For better understanding, these material-bonded connections 10a were not shown for every material recess 9a1 to 9a8 in Figures 2 and 3. In Figure 2, this material-bonded connection 10a can only be seen at material recess 9a1.

[0051] In Fig. 3, the material bond 10a can be seen at the material recesses 9a1 to 9a4, with the material recesses 9a3 and 9a4 existing before welding shown as dashed lines. However, it is also conceivable that a material bond 10a does not exist at every material recess 9a1 to 9a8.

[0052] In the exemplary embodiment, the welds 11 are each executed as a fusion-welded and a full slot weld – using a welding filler material. This ensures that the material recesses 9a1 to 9a8 are completely filled in their extent and depth, which further improves, for example, the mechanical stability. It could also be a fully welded seam 11, for example, a slot weld. An oxy-fuel weld is also conceivable, but this has not been described in detail.

[0053] Figure 3 also shows a material recess 9b1 in the inner profile 7. This recess 9b1, which also penetrates the inner profile 7, is located directly below the material recess 9a4 in the outer profile 8. The material recess 9b1 is identical in shape and length to the material recess 9a4 in the outer profile 8. This results in a double slot in the profile 4. The weld 11 shown in Figure 3 is fully welded in this case. The material-bonded connections 10a in the area of ​​the material recesses 9a1 to 9a8 and 9b1 not only increase the mechanical strength in the curved profile section 6, but also ensure improved dimensional stability under mechanical loads. Therefore, the safety of the cabin 1 can be significantly enhanced by using the profile 4 according to the invention. Instead of a welded joint with weld seam 11, a soldered joint is also conceivable, which has not been described in detail.

[0054] Figure 1 shows several curved profile sections 6. For example, it is also conceivable that on the S-shaped profiles 4, an inner profile 8 is inserted in the outer profile 7 for each curved profile section 6, or a single inner profile 8 is inserted in the outer profile 7 for both curved profile sections 6.

[0055] As can also be seen in Fig. 2, all material recesses 9a1 to 9a8 have a longitudinal course extending transversely to the longitudinal direction L of the profile 4 (and thus inclined). The material recesses 9a1 to 9a8 are provided extending completely along the inside of the curved profile section of the profile 4. Directly adjoining this, the material recesses 9a1 to 9a8 also extend along the two side surfaces 4c, 4d of the curved profile section 6 and terminate at a distance A1 in front of the outer surface 4b of the curved profile section 6. This results in a U-shaped course on the profile 4 or, in the exemplary embodiment, on the outer profile 7.

[0056] In a simplified design, the material recesses 9a to 9h have a slotted shape. The welds 11 are designed as fusion-welded full slotted welds.

[0057] Furthermore, these material recesses 9a1 to 9a8 are arranged side by side at a second distance A2, running parallel to each other, and all have a substantially uniform opening width W along their length, as can be seen, for example, in Fig. 4. The material recesses 9a1 to 9a8 of the outer profile 8 are interrupted along their length by spacers 12, which bear against the respective opposite longitudinal edge 13a of the material recesses 9a1 to 9a8. This allows the opening width W of the material recesses 9a1 to 9a8 to be fixed precisely – even after bending the profile 4 – thus facilitating the material-fit joining and ensuring a dimensionally accurate profile 4.

[0058] Furthermore, in Fig. 3, a positive-locking connection 10b can be seen (dashed line) at the material recess 9a8, which also has a material-locking connection 10a (not shown in detail). This positive-locking connection 10b can be – as shown – a pin as a connecting element 14 or a material tongue 15 of the outer profile 8 engaging in a recess of the inner profile 7.

[0059] For example, it may be sufficient to provide a single positive-locking connection 10b to position it securely in the outer profile 8 before the curved profile section 6 is formed. This increases the reproducibility of the manufacturing process and / or the stability of the profile 4.

[0060] It is generally accepted that "in particular" can be translated into English as "more particularly". A feature preceded by "in particular" is to be considered an optional feature that can be omitted and therefore does not constitute a limitation, for example, of claims. The same applies to "preferably", translated into English as "preferably", and to "if necessary", translated into English as "if necessary".

Claims

P a t e n t a n s p r ü c h e:

1. Profile (4), in particular a hollow profile, which has at least one profile section (6) which is curved and / or bent in its longitudinal direction (L), with an outer profile (7), in particular made of metal, extending over the curved and / or bent profile section (6) of the profile (4), and with an inner profile (8), in particular made of metal, provided at least partially in the curved profile section (6) and, in particular, completely within the outer profile (7), characterized in that the outer profile (7) has at least one material-bonded connection (10a), in particular produced with at least one additive material, and optionally a positive-locking connection (10b) between the inner and outer profile (7, 8) in the curved and / or bent profile section (6), which connection (10a, 10b) is provided at least in the area of ​​a material recess (9a1 to 9a8) penetrating the outer profile (7).

2. Profiles according to claim 1, characterized in that the material-bonded connection (10a) is a weld seam (11), in particular a fusion-welded weld, in particular a slotted weld, for example a full slotted weld, a soldered joint or an adhesive joint and / or that the form-fit connection (10b) has a connecting element (14) or a material tongue (15) of the outer profile (8) engaging in the inner profile (7).

3. Profile according to one of claims 1 to 2, characterized in that the material recess (9a1 to 9a8) has at least sectionally an inclined course, in particular transversely, to the longitudinal direction (L) of the profile (4).

4. Profile according to one of claims 1 to 3, characterized in that the material recess (9a1 to 9a8) is provided extending at least along the inner surface (4a) of the curved and / or bent profile section (6) of the profile (4), in particular completely.

5. Profile according to one of claims 1 to 4, characterized in that the material recess (9a1 to 9a8) is provided extending along at least one side surface, in particular along both side surfaces, of the curved and / or bent profile section (6).

6. Profile according to claim 5, characterized in that the material recess (9a1 to 9a8) on the relevant side surface adjoins the inner surface (4a) of the curved and / or bent profile section (6) and extends in the direction of the outer surface (4b) of the curved and / or bent profile section (6), and / or that the material recess (9a1 to 9a8) terminates with a first distance (A1) in front of the outer surface (4b) or in the transition area to this outer surface (4b) of the curved and / or bent profile section (6).

7. Profile according to one of claims 1 to 6, characterized in that the material recess (9a1 to 9a8) is designed as a slot and / or that the material recess (9a1 to 9a8) extends in a U-shape along the profile (4).

8. Profile according to one of claims 1 to 7, characterized in that several material recesses (9a1 to 9a8) are provided adjacent to each other, in particular parallel, at a second distance (A2) and / or that the material recess (9a1 to 9a8) has a substantially uniform opening width (W) over its length.

9. Profile according to one of claims 1 to 8, characterized in that the material recess (9a1 to 9a8) is interrupted in its course by at least one spacer (12) formed by the respective outer profile (7) or inner profile (8), in particular freely projecting.

10. Profile according to one of claims 1 to 9, characterized in that the connection (10a, 10b) is also provided in the area of ​​a material recess (9b1) penetrating the inner profile (8) which directly adjoins the material recess (9a1 to 9a8) of the outer profile (7).

11. Profile according to one of claims 1 to 10, characterized in that the material bond (10a) completely fills the material recess (9a1 to 9a8) in its extent and / or depth.

12. Profile according to one of claims 1 to 11, characterized in that the inner profile (8) extends continuously in the curved and / or bent profile section (6) and optionally projects into at least one, in particular both, adjoining profile section (6a, 6b) of the profile (4) which extends straight in the longitudinal direction (L) of the profile (4).

13. Cabin with a profile (4) according to one of claims 1 to 12, in particular as part of a cabin frame of the cabin, for example as a pillar, in particular B-pillar.

14. Vehicle, in particular tractor, with a profile (4) according to one of claims 1 to 12 or with a cabin according to claim 13.

15. Method for producing a profile (1) according to any one of claims 1 to 12, in which an outer profile (7) with at least one material recess (9a1 to 9a8) penetrating it and an inner profile (8) with optionally at least one material recess (9b1) penetrating it are provided or produced, the inner profile (8) is inserted into the outer profile (7), in particular inserted into it, then the outer profile (7) and inner profile (8) are jointly formed, in particular bent, such that a profile section (6) extending in its longitudinal direction (L) is formed on the profile (4) with the material recess (9a1 to 9a8 or 9b1) in this profile section (6), and in a further step at least one material bond is formed at at least the material recess (9a1 to 9a8) of the outer profile (7). (10a), in particular with at least one additive material, between the inner and outer profile (7, 8).

16. Method according to claim 15, characterized in that a positive-locking connection (10b) is created between the inner and outer profiles (7, 8) before the joint forming.

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